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Network Administrator (Top Secret)

Springfield, VA
Seneca Resources is client driven provider of strategic Information Technology consulting services and Workforce Solutions to government and industry. We are a leading IT services provider headquartered in Reston, VA with offices in Richmond, VA Birmingham, AL and Columbia, MD that service clients throughout the United States. The key to our success lies within our strong corporate culture which drives our business. We challenge our staff through engaging work, and we reward our staff through competitive compensation, extensive professional training, and excellent opportunities for career advancement. In turn, we look for only the best and brightest to join our team. 

Title:  Network Administrator
Location:  Springfield, VA
Employment Type: Full Time
Compensation: Very Competitive
Clearance: Top Secret

  • Identify high level design requirements for the backbone to include redundancy, maintainability and disaster recovery requirements.
  • Identify the detailed design requirements for the backbone to include server locations, user locations, projected traffic flows between devices, layer three devices and layer four protocols (Transmission Control Protocol).
  • Design, implement, and sustain solutions to include the following:
    • Overall topology (switch interconnection locations, Continuity of Operations Plan (COOP) scenarios, etc.).
    • Layer two design: spanning tree, trunking, speeds.
    • Operational Information: node addressing, server addressing (if changes are required).
    • QoS (Quality of Service)
    • Wireless LAN.
    • 1x – protocols and appliances
    • DNS/DHCP appliances
    • Wireless Intrusion Detection (WIDS) 
  • Develop and implement Fail-over solutions.
  • Troubleshoot and support existing production networking infrastructure (Cisco routers and switches) as well as newly installed technologies.  On-call duty will be required.
  • Creation of lab environment for scenario simulation, testing and training.
  • Knowledge transfer to the NTS-LAN government employee staff and/ or contract personnel supporting the current contract.
  • Support network monitoring tools not limited to but including Hewlett Packard Enterprise Openview, Network Automation, Network Node Manager i, Concord eHealth, WhatsUp Gold, Solar Winds, including commands, scripts and utilities.
  • Install, configure and maintain networking hardware and software for the DLA, Information Operations, Enterprise Network Infrastructure.
  • Knowledgeable in troubleshooting, administering, configuring and maintaining the following:
    • Enterasys, Brocade, and/or Cisco Catalyst and Nexus network hardware and software. 
    • INFOBLOX Grid Manager
    • Pulse Secure IC Series Unified Access Control Appliance
    • Great Bay Beacon Server
    • Cisco Access Control Servers (ACS)
    • Cisco Prime, Wireless Controllers and access points
    • Network sniffer technologies, including WildPackets, OmniPeek, NetScout InfiniStream
    • Network Management Software, including HPE Network Automation (NA), HPE Network Node Manager (NMNi), Concord eHealth, RedSeal, NetSight, Wildpackets, Solarwinds/Orion, SecureCRT. 
  • Knowledgeable in troubleshooting, administering, and maintaining the following:
    • Open Systems Interconnection model (OSI model) Layers 1-7
    • Network Protocols, including IPv6 and IPv4 (TCP, UDP, ICMP, IGMP, ARP, AH, ESP, VRRP)
    • IEEE Standards: 802.1x, 802.1Q, 802.1s, 802.1D, 802.1W, 802.1ax, 802.3, 802.11
    • Authentication, Authorization, and Accounting Protocols, including TACACS+ and RADIUS.

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